侧岭油粘米高产优质栽培技术简介

侧岭油粘米是获得国家农产品地理标志的产品侧岭米的当家品种,以口感、外观、胶稠度、垩白度、碱消值、直链淀粉等指标优越而著称,但目前栽培技术还比较传统,产量、品质还有待进一步提高。为给生产高质、高产、高效的侧岭油粘米提供技术支撑,以绿色食品生产标准为依据,集成测土配方施肥、秸秆(冬绿肥)全量还田、富硒、农机农艺融合等技术,从环境条件、种子处理、播种育苗、苗期管理、大田水肥管理、病虫草害绿色防控及收获贮藏等方面对侧岭油粘米优质高产栽培技术进行阐述。

黑优粘米酶解水提液延缓衰老作用研究

以ＢＡＬＢ／Ｃ小鼠为实验对象，研究了黑粘米酶解水提液对小鼠某些衰老指标的影响。结果表明：黑粘米酶解水提液能降低小鼠脑Ｂ型单胺氧化酶（ＭＡＯ—Ｂ）活性４０．６８％（Ｐ＜０．０１）；肝脏超氧化岐化酶（ＳＯＤ）和全血谷胱甘肽过氧化物酶（ＧＳＨ—ＰＸ）活性分别提高１０．４１％（Ｐ＜０．０５）和１９．３１％（Ｐ＜０．０１）；肝脏过氧化脂质（ＬＰＯ）含量降低２５．７１％（Ｐ＜０．０５）；皮肤和尾腱羟脯氨酸（ＨＰＰ）含量分别增加１５．４１％（Ｐ＜０．０１）和１２．１％（Ｐ＜０．０１）。提示黑优粘米酶解水提液有较好延缓衰老作用。

鄂东经典小吃粘米粑的制作技术

主要探讨以粘米、糯米等为主要原料制作鄂东经典小吃粘米粑的制作工艺流程及制作技术关键,通过单因素试验确定影响粘米粑口感品质的4个因素是:粘米与糯米的配比、炒粉的时间、加盐量及汽蒸的时间。并利用L9(34)正交试验总结出粘米粑制作的最佳工艺配方为粘米∶糯米=92%∶8%、炒粉时间20 min、加盐量0.5%、汽蒸时间30 min,供食品生产商参考。

不同储藏条件下美香粘米品质变化的对比研究

研究美香粘米在氮气气调、低温储藏及常温储藏条件下的品质变化的情况,以期获取美香粘米最佳储藏条件以及储备周期。将美香粘米于氮气气调、低温储藏及常温储藏三种储藏方式下储藏,每30 d检测其酸度、品尝评分值、黄粒米率、直链淀粉含量和质构特性的变化。实验结果表明:氮气气调储藏320 d(10个月)、低温储藏270 d(9个月)的美香粘米的劣变程度与常温储藏180 d(6个月)的劣变程度相当。说明氮气气调储藏以及低温储藏与常温储藏相比,两种均能在一定程度上延缓美香粘米的品质劣变,且氮气气调效果优于低温储藏,但两种储藏方式效果有限,同时都不能消除原有香味的淡化。建议氮气气调储藏的美香粘米的储备周期为10个月。

优质稻红米冬粘富硒生态栽培实践与探索

以安乡县天喜哥家庭农场为例,介绍了优质稻红米冬粘富硒生态栽培开发的情况。优质稻富硒生态栽培可采用冬种绿肥、施用有机肥、稻田养鸭、病虫害专业化统防统治、喷施硒肥等综合措施。

富硒优质红米冬粘水稻高产栽培技术

桃源县位于湖南省西北部,近年来,富硒优质红米冬粘生产发展迅速,栽培模式有一季中稻、双季晚稻2种。介绍了富硒优质红米冬粘水稻高产栽培技术,包括种子处理、适时播种、适时移栽、田间管理、病虫害防治等方面内容,以期为实现桃源县域富硒优质红米冬粘产量的增长提供技术参考。

ISSR技术用于三种大米的鉴定

使用分子生物学方法,通过构建ISSR分子标记图谱,对地理标志产品增城丝苗米7个品种、马坝油粘米3个品种、盘锦大米5个品种进行分析。结果显示,该方法可完全区分实验所分析的15个品种。

粘火勺情结

我从12岁起．在一个山沟里困了24年才挣扎出去，那个地方两帮夹一沟．种的几乎全是玉米．整年见不到点细粮。然而．再穷也得过年啊，于是，粘火勺就摆到了山民们的餐桌上。

河东乌麦胚芽营养麦片的研制

在系统评价河东乌麦、黑优粘米和粤引黑大豆 1号主要营养成分的基础上 ,以河东乌麦为主要原料 ,配伍黑优粘米、粤引黑大豆 1号等辅料 ,采用原料发芽处理等工艺技术 ,研制开发出河东乌麦胚芽营养麦片新产品 .原料通过发芽处理可以明显提高其维生素B1、B2 、C和维生素E的含量 .3种主要原料的合理配比使制成的麦片营养全面、平衡 。

手机短信问答(十六)

近段时间．很多读者给我们发来短信说，想通过我们杂志牵线拜师学艺。对于厨师朋友们这种虚心好学的态度，我们十分钦佩，但是据我们了解的情况来看，目前有相当一部分人拜了师以后，并没有学到什么东西，为此，我们将在下一期以“厨师拜师”为话题，展开短信讨论。

Removal of Cd（II） by Nanometer AIO（OH） Loaded on Fiberglass with Activated Carbon Fiber Felt as Carrier

A new nanometer material, nanometer AlO（OH） loaded on the fiberglass with activated carbon fibers felt（ACF） as the carrier, was prepared by hydrolytic reaction for the removal of Cd（II） from aqueous solution using column adsorption experiment. As was confirmed by XRD determination, the hydrolysis production loaded on fiberglass was similar to the orthorhombic phase AlO（OH）. SEM images showed that AlO（OH） particles were in the form of small aggregated clusters. The Thomas model was applied for estimating the kinetic parameters and the saturated adsorption ability of Cd（II） adsorption on the new adsorbent. The results showed that the maximum adsorption capacity of Cd（II） was 128.50 mg·g^-1 and 117.86 mg·g^-1 for the adsorbent mass of 0.3289 g and the adsorbent mass of 0.2867 g, respectively. The elution experiment result indicated that the adsorbed Cd ions was easily desorbed from the material with 0.1 mol·L^-1 HCl solution. Adsorption-desorption cycles showed the feasibility of repealed uses of the composited material. The adsorption capacities were influenced by pH and the initial Cd（II） concentration. The amount adsorbed was greatest at pH 6.5 and the initial Cd（II） concentration of 0.07 mg·L^-1, respectively. Nanometer AlO（OH） played a major role in the adsorption process, whereas the fiberglass and ACF were assistants in the process of removing Cd（II）. In addition, the adsorption capacities for Cd（II） were obviously reduced from 128.50 mg·L^-1 to 64.28 mg·L^-1 when Pb ions were present because Pb ions took up more adsorption sites.

Effect of nanoclay on properties of porous PVdF membranes

The main requirements for battery separators are high porosity which can serve pathways of lithium ion and space for gel electrolytes to impregnate in a membrane and mechanical strength to allow easy handling for battery assembly. Generally, it appears the trade-off relationship between the porosity and mechanical strength of the membrane. PVdF composite membranes containing nano-size clays were used to improve the mechanical strength of the membrane without affecting the membrane porosity. The composite membranes were prepared by phase inversion method controlling the membrane preparation conditions such as retention time. The resultant membranes show increased mechanical properties with similar membrane porosity around 80 % compared to the pristine PVdF membrane. Incorporation of nonoclay can be considered as an effective method to improve the mechanica! strength in porous membrane supports, especially in a separator.

Adsorption of sulfate in aqueous solutions by organo-nano-clay:Adsorption equilibrium and kinetic studies

The adsorption of sulfate in aqueous solutions onto organo-nano-clay prepared by natural zeolite and cationic surfactant cetyltrimethylammonium bromide （CTAB） was studied.Parameters such as adsorbent dosage,contact time and temperature were investigated using batch adsorption studies.The results show that the uptake of sulfate increases with the increase of contact time and temperature,and decreases with the increase of dosage.The Freundlich isotherm model is fit to explain the sulfate adsorption onto organo-nano-clay.The maximum adsorption capacity is found to be 38.02 mg/g at 40 ℃.The kinetic data fit well the pseudo-second-order and Elovich models with a R2 more than 0.98.It is suggested that chemisorption is the rate-controlling step for adsorption of sulfate onto organo-nano-clay,meanwhile both intraparticle diffusion and boundary layer diffusion also contribute as well.Ion-exchange between sulfate anions and bromide ions and complexation between sulfate anions and CTAB cations are responsible for the mechanism of sulfate adsorption.Keywords：organo-nano-clay; cetyltrimethylammonium bromide （CTAB）; modification; sulfate; adsorption

A binder-free, flexible cathode for rechargeable Na-O_2 batteries

Rechargeable Na-O2 batteries have attracted significant attention as energy storage devices owing to their theoretically high energy storage capacity and the natural abundance of sodium. However, practical applications of this type of battery still suffer from low specific capability, poor cycle sta- bility, instable electrolytes, and unstable polymer binders. Herein, we report a facile method of synthesizing binder free and flexible cathodes with C0304 nanowire arrays vertically grown onto carbon textiles. When employed as a cathode for Na-O2 batteries, this cathode exhibits superior performance, including a reduction of charge overpotential, high specific capacity （4687 mAh/g）, and cycle stability up to 62 cycles. These enhanced performance can be attributed to the synergistic effect of the porosity and catalytic activity of the C0304 nanowire catalyst.

Boundary layer flow of third grade nanofluid with Newtonian heating and viscous dissipation

Two-dimensional boundary layer flow of an incompressible third grade nanofluid over a stretching surface is investigated.Influence of thermophoresis and Brownian motion is considered in the presence of Newtonian heating and viscous dissipation.Governing nonlinear problems of velocity, temperature and nanoparticle concentration are solved via homotopic procedure.Convergence is examined graphically and numerically. Results of temperature and nanoparticle concentration are plotted and discussed for various values of material parameters, Prandtl number, Lewis number, Newtonian heating parameter, Eckert number and thermophoresis and Brownian motion parameters. Numerical computations are performed. The results show that the change in temperature and nanoparticle concentration distribution functions is similar when we use higher values of material parameters β1 andβ2. It is seen that the temperature and thermal boundary layer thickness are increasing functions of Newtonian heating parameter γ.An increase in thermophoresis and Brownian motion parameters tends to an enhancement in the temperature.

Ghezeljeh nanoclay as a new natural adsorbent for the removal of copper and mercury ions: Equilibrium, kinetics and thermodynamics studies

Heavy metal determination was carried out by applying the solid phase extraction （SPE） method in batch mode followed by atomic absorption spectroscopy （AAS） and inductively coupled plasma atomic emission spectrosco py （ICP-AES） from aqueous solutions using Ghezeljeh montmorillonite nanoclay as a new natural adsorbent. The Ghezeljeh clay is characterized by using Fourier Transform Infrared （FT-IR） Spectroscopy, Scanning Electron Mi- croscopy-Energy Dispersive Spectrometry （SEM-EDS） and X-ray Diffractometry （XRD） and X-ray Fluorescence （XRF）. The results of XRD and FT-IR of nanoclay confirm that montmorillonite is the dominant mineral phase. Based on SEM images of Ghezeljeh clay, it can be seen that the distance between the plates is Nano. The effects of varying parameters such as initial concentration of metal ions, pH and type of buffer solutions, amount of ad- sorbent, contact time, and temperature on the adsorption process were examined. The effect of various interfer- ing ions was studied. The adsorption data correlated with Freundlich, Langmuir, Dubinin-Radushkevich （D-R）, and Temkin isotherms. The Langmuir and Freundlich isotherms showed the best fit to the equilibrium data for Hg（II）, but the equilibrium nature of Cu（ll） adsorption has been described by the Langmuir isotherm. The kinetic data were described with pseudo-first-order, pseudo-second-order and double-exponential models, The adsorp- tion process follows a pseudo-second-order reaction scheme, Calculation of AGσ, △Hσ and ASσ showed that tilenature of Hg（II） ion sorption onto the Ghezeljeh nanoclay was endothermic and was favored at higher temper- attire, and the nature of Cu（II） ion sorption was exothermic and was favored at lower temperature,

Measurement of thermal conductivity,viscosity and density of ionic liquid [EMIM][DEP]-based nanofluids

This article studied experimentally the effect of multi-wall carbon nanotubes （MWCNTs） on the thermo physical properties of ionic liquid-based nanofluids. The nanofluids were composed of ionic liquid, 1-ethyl-3- methylimidazolium diethylphosphate [EMIM][DEP], or its aqueous solution[EMIM][DEP]（1） ＋ H20（2） and MWCNTs without any surfactants. The thermal conductivity, viscosity and density of the nanofluids were mea- sured experimentally. The effects of the mass fraction of MWCNTs, temperature and the mole fraction of water on the thermo physical properties of nanofluids were studied. Results show that the thermal conductivity of nanofluids increases within the range of 1.3%-9.7% compared to their base liquids, and have a well linear depen- dence on temperature. The viscosity and density of the nanofluids exhibit a remarkable increase compared with those of the base liquids. Finally, the correlation of the effective thermal conductivity and viscosity of the nanofluids was made using the models in the literatures.

Flow of Casson nanofluid with viscous dissipation and convective conditions: A mathematical model

The magnetohydrodynamic(MHD) boundary layer flow of Casson fluid in the presence of nanoparticles is investigated.Convective conditions of temperature and nanoparticle concentration are employed in the formulation. The flow is generated due to exponentially stretching surface. The governing boundary layer equations are reduced into the ordinary differential equations. Series solutions are presented to analyze the velocity, temperature and nanoparticle concentration fields. Temperature and nanoparticle concentration fields decrease when the values of Casson parameter enhance. It is found that the Biot numbers arising due to thermal and concentration convective conditions yield an enhancement in the temperature and concentration fields. Further, we observed that both the thermal and nanoparticle concentration boundary layer thicknesses are higher for the larger values of thermophoresis parameter. The effects of Brownian motion parameter on the temperature and nanoparticle concentration are reverse.

PREPARATION AND PROPERTIES OF CLAY/POLY（N-ISOPROPYLACRYLAMIDE-co-A CRYL AMIDE） NANOCOMPOSITE HYDROGELS

A series of clay/poly（N-isopropylacrylamide-co-acrylamide） nanocomposite hydrogels （S-N-M gels） have been successfully prepared by in situ polymerization. The mechanical properties, swelling behavior of S-N-M gels and the transparency changes during polymerization of S-N-M gels have been systematically investigated. Compared to traditional hydrogels, S-N-M gels show excellent tensile properties and their swelling ratio increases with increasing acrylamide （AAm） content. The results of stress relaxation indicate that the stress loss decreases with increasing AAm content. It was surprisingly found that the transparency during all S-N-M gel synthesis changes abruptly, and the changes become more abrupt with increasing N-isopropylacrylamide content. It was concluded that the fact may be related to the hydrophilicity of copolymers. The weaker the hydrophilicity of copolymer, the more apparent the transparency change during S-N-M gels polymerization. We believe the relationship between hydrophilicity of copolymer and transparency changes will help to design novel nanocomposite hydrogels.